Interference Profile Library for Narrowband Signal Mitigation
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Solution Overview
Problem
Interference from unexpected wireless sources negatively impacts communication systems, leading to lower throughput, dropped calls, and traffic congestion, which existing solutions like adding communication nodes or antenna steering techniques have not adequately addressed.
Innovation Solution
A method and apparatus for detecting and mitigating interference signals by using an interference profile library to identify sources and applying adaptive filtering to remove narrowband interference in communication systems, including mobile and stationary devices, base stations, and wireless hubs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If more communication nodes are added to address interference, then system coverage and capacity are improved, but device complexity and cost increase
Solution Approach 1:
The communication system performs self-diagnosis by automatically detecting interference patterns and identifying interferer profiles through comparison against stored profiles, eliminating the need for manual interference management and reducing operational complexity
Solution Approach 2:
An interference profile library serves as an intermediary database that stores characteristic signatures of known interferers, enabling the system to identify and mitigate interference without requiring complex real-time analysis of every interference event
2Object-affected harmful factors
If antenna steering techniques are used to avoid interferers, then interference mitigation is improved, but device complexity and positioning precision requirements increase
Solution Approach 1:
The system replaces mechanical antenna steering with signal processing-based interference mitigation by comparing received signals against stored interferer profiles and applying appropriate filtering or rejection algorithms, eliminating the need for complex mechanical positioning systems
3Reliability
If interference detection and mitigation processing is performed, then communication reliability is improved, but processing time and computational resources increase
Solution Approach 1:
Interference profiles are pre-characterized and stored in a database before actual interference events occur, allowing the system to quickly match and identify interferers in real-time by comparing against these pre-established profiles, significantly reducing processing time during actual interference events
Solution Approach 2:
The system creates and stores copies of interference signal profiles from known interferers, enabling rapid identification and mitigation by comparing received signals against these stored copies rather than performing complex real-time analysis
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively suppresses narrowband interference, improving communication system performance by enhancing throughput and reducing adverse effects such as dropped calls and congestion.
Implementation Method 1
an adaptive filter stage coupled to the wideband receiver. The adaptive front end controller determines filter state information and provides the filter state information to the adaptive filter stage, which filters the wideband signal to mitigate the interference signal
Data Source
AI summary
A system includes a method for detecting a signal interference in a communication signal of a wireless communication system. An identified source of the signal interference is determined according to an interference profile of a plurality of interference profiles associated with an interference profile library having information that approximates characteristics of the signal interference. The signal interference of the communication signal is mitigated according to an interference parameter associated with the identified source by filtering the communication signal according to the interference parameter.